Casement window lock



Nov. 4, 1952 N. 'M] HISER CASEJMENTWINDOW LOCK Filed July 5, 1950 2 SHEETS-SHEET 1 M a 6 MW 1952 N. M. HI'SER 2,616,737

' CASEMENT WINDOW LOCK Filed July 5', 1950 2 SHEETS-SHEET 2 3 r] ziw a m a N 1 J KM I)?! 1/ 7 E II. I A

vii/l 1/4 VII/fl Patented Nov. 4, 1952 1 UNITED STATES PATENT OFFICE 2,616,737 r v v v CASEMENT WINDOW LOCK Noble M. Hiser, Tucson, Ariz. Application July 5, 1950, Serial No. 172,098

3 Claims. (01. 292-48) This invention relates to latching devices for windows particularly of the casement type, and in particular a manually actuated lock including keeper engaging bolts carried on inner ends of shafts with pins eccentrically positioned on the outer ends of the shafts actuated by a slider through a bar wherein the bar is actuated by a finger gripping lever pivotally mounted on a strut between the sash of a casement window.

The purpose of this invention is to provide means for positively locking the sash of casement windows in which'the locking elements are actuated to locking and release positions by a hand lever positioned on a window sill.

In the usual type of casement windows where the sash are hinged at the sides and swing outwardlysmall latches are provided for securing the sash in the closed positions and it is sometimes very diflicult to draw the sash closed to such positions that the latches operate. With this thought in mind this invention contemplates a positive locking latch wherein bolts, actuated by a hand lever engage cam shaped surfaces on the edges of keepers so that with the sash partly closed the sash are drawn to completely closed positions by the bolts which are operated by a hand lever.

The object of this invention is, therefore, to provide means for incorporating a hand actuated lock on a casement window whereby the sash are drawn to the closed positions and positively locked therein.

Another object of the invention is to provide a hand actuated latch for casement windows that may be installed on windows now in use.

A further object of the invention is to provide an improved manually actuated lock for casement windows which is of a simple and economical construction.

With these and other objects and advantages in view the invention embodies a hand lever pivotally mounted on the lower end of the strut posi tioned betweenthe sash of a casement window with a vertically slidable bar connecting the hand lever bolts pivotally mounted in a casing on the upper part of the strut and with the bolts positioned to engage keepers on the inner edges of the sash.

Other features and advantages of the invention will appear from the following description taken in connection with the drawings wherein:

Figure l is a front elevational view showing a part of a casement window with the lock mounted on a vertically disposed center strut thereof.

Figure 2 is a detail on an enlarged scale showing the upper casing in which the lock actuating elements are positioned.

Figure 3 is a sectional plan through the casing shown in Figure 2 taken on line 3-3 thereof and also showing the parts on an enlarged scale.

Figure 4 is a detail similar to that shown in Figure 2 showing the parts in the unlocked position.

Figure 5 is a cross section taken on line 5-5 I Figure 9 is a vertical section through the latch casing showing the bolt actuating plate on the upper end of the vertical bar with one of the arms for actuating the bolts by the plate.

Figure 10 is a vertical section showing the operating lever positioned on a window sill at the lower end of the sash and showing the lever in the position of locking the sash.

Figure 11 is a similar section showing the lever 'in the'position of releasing the sash.

Figure 12 is a front elevational view of the operating lever and mounting elements therefor. Referring now to the drawings-wherein like reference characters denote corresponding parts the improved casement window lock of this invention includes an operating lever Ii] pivotally 2 mounted in a mounting bracket H by a pin 12 and connected to a sliding bar IS with a link 14,

the upper end of the bar l3 having a. plate [5 with slots I 6 and i'i therein mounted thereon and the slots are positioned to receive pins i8 and I9, respectively, of bolts 20 and 2| which are carried on the opposite ends of shafts 22 and 23, respectively.

The shafts are mounted in bearings 24 and 25 that are secured to a web 26 of an I beam shaped strut 21 by screws 28 and 28 and the dogs 20 and 2| are positioned to engage keepers 30 and 3! respectively of clips 32 and 33 positioned on the edges of the vertical rails 34 and 35 of sash, as indicated by the numerals 36 and 31. As shown in Fig. 8 the edge of the keeper 3B is provided with a cam shaped surface 30 which is engaged by the bolt 20 to draw the sash to a completely closed position when the bolt 20 is operated by 3 the lever It). It is to be understood that the keeper 3| is also provided with a similar surface for engagement therewith of the bolt 2|.

The outer ends of the shafts 22 and 23 extend through openings 38 and 39 in the outer flange 48 of the strut 27 and the pins l6 and I! are carried by arms 4| and 42 on the outer ends of the shafts.

The arms 4| and 42 with the plate H in which the slots IS and I 1 are provided aremounted in a casting 43 that is mounted on the outer surface of the flange by screws 44 in flanges 45 and 46 and with the parts arranged in this manner the bar 13 on the upper end of which theplate I5 is.

secured by rivets 47 extends through a slot 33 in the casing 43 and downwardly to the bracket I l on which the lever H] is pivotally mounted.

The lower end of the bar I 3 is provided with a projection 49 in the outer end of which the link I4 is mounted by a pin 50 and as shown in Figure 11 the link is pivotally connected to the lever it by a pin 5!. The outer end of the lever is provided with a finger ring 52 by which the bolts are actuated.

With the parts mounted in this manner the lever H3 is drawn downwardly to the position shown in Figure 11 to actuate the bolts to the position shown in Figure '7 whereby the latch is unlocked and when it is desired to lock the-window the lever is moved upwardly to the position shown in Figure 10 whereby the bolts are actuated to the position shown in Figure 6 so that the window is locked.

This locking device may be attached to a casement window of any suitable type and may be mounted in any position thereon desired.

The bracket H, in the design as illustrated in Figure 1 is mounted onthe intermediate strut or rail 21 of the window with screws 53 in flanges 54 and 55 onthe sides thereof and the locking clips are attached to the webs of the rails 34 and 35 by screws 56 and 51 asshown in Figures 6 and '7.

It will be understood that modifications may be made in the designand arrangement of the parts.

without departing from the spirit of the invention.

What is claimedis:

1. A casement window lock comprising a lever, a bracket mounted on a vertical strut of the casement window adjacent the lower edge of the casement window in-whichthedever is pivotally mounted, a latch. casing mounted centrally of the verticalstrut directly above and in linewith said, bracket, shafts having bolts on the inner ends mounted'in the vertical, strut, pins eccentrically positioned on the outer; ends of said shafts; bearings in the vertical strut in which the shafts are pivotally mounted, a bar extended from the lever mounting bracket to the latch casing, a plate having slots in the upper end in which the said eccentrically mounted pins are positioned carried by the upper end of the said bar, means actuating the said bar by the said lever, the latch casing and bearings being so mounted with relation to said casement window that said bolts will engage keepers carried by said casement window to retain said window in closed position.

2. A casement window lock comprising a lever, a bracket mounted adjacent the lower end of a vertical strut of the casement window in which the lever is'pivotally mounted, a' latch casing mounted centrally of the vertical strut directly above and in line with said bracket, shafts having bolts on the inner ends mounted in the vertical strut, pins eccentrically positioned on the outer ends of said shafts, hearings in the vertical strut in whichthe shafts are pivotally mounted, a bar extended from the lever mounting bracket to the latch casing, a plate having slots in the upper end in which the said eccentrically mounted pins are positioned carried by the upper end of the said bar, means actuating the said bar by the said lever, said bracket and latch casing having mounting means thereon for mounting the elements on the vertical strut of the casement win-' dow for coaction with the casement window so that said bolts will engage keepers carried by said casement window to retain said casement window in closed position.

3. A casement window lock comprising a lever, a bracket mounted on the vertical strut adjacent the lower edge of the casement window in which the lever is pivotally mounted, a latch casing mounted centrally of the vertical strut directly above and in line with said bracket, shafts having bolts on the inner ends mounted in the vertical strut, pins eccentrically positioned on the outer ends of said shafts positioned with the said outer ends extended into said latch casing, bearings mounted in the vertical strut in which the shafts are pivotally mounted, a bar extended from the lever mounting bracket to the latch casing, a plate having slots therein in which the said eccentrically mounted pins are positioned carried by the upper end of thesaid bar, said lever having a finger.

REFERENCES CITED.

The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date:

Kelly Apr. 4, 1933' 

